|© Jhansonxi (via Wikimedia Commons)|
According to the History Channel's website, rabbits are a symbol of fertility and new life due to their breeding habits, which could have led to their association with spring, which led to their association with Easter.
Speaking of baby bunnies, if you stumble across a nest and don't see the mother around, don't assume the babies are orphans. Mother rabbits don't stay with the babies 24/7. In fact, they're absent from the nest most of the day, and only feed the babies in the early morning and in the evening. However, if you are CERTAIN the babies are orphaned (for example, if you witnessed your dog or cat killing the mother), do NOT try to raise them yourself. This is a difficult task for a trained wildlife rehabilitator, and an impossible one for somebody without that training. Wild baby bunnies are the most difficult mammals for humans to raise - they have very specific requirements and they succumb easily to stress and infections. Check with your state's Department of Natural Resources for a list of rehabilitators in your area.
Happy Easter/ Passover/ Spring!